Instead,computer-makers prefer to emphasise the scale of the problem—since that leads naturallyto a sales pitch for the various technologies they have devised to mitigate it.

By this model, we compare the cooling effectiveness of three methods and analysis cooling characters when reduce the diameter and pitch of the holes at the same scale.

In the real time experimentation for pitch detection of audio signal, the algorithm ensures the optimal scale and extracts the maximum of wavelet transform, and it has achieved a better result.